How to upload an attachment to a work item via REST API

Hi ,

I am trying to use you code for similar purpose , but it's not working for me.

can you please show me how did you initialize your session for it to work.

I think I have a problem there , something with authentication ...

Thanks :D

Hey Ralph,

Hugh,

my blog is Java only so far. That was the intention I had. Maybe I will find time for OSLC etc. some times, but no luck so far.

Once you posted would be great if you could comment on my blog post, so that I can put the link back in there.

Hi All,
I know this thread is quite old but Im trying to create a straightforward implementation of this using WebClient in c# using your python implementation as pattern, however Im stuck on the part where I need to get the attachment Identifier and description.
See what I have below and let me know what Im missing.
Im stuck at 3.1 since the response Im getting is only the filec contents and not the JSON response containing the attachment ID and description.
Also, when it comes to 3.2 and using POST method, I always get 405: Method not allowed response error.
I also tried PUT but the attachment links are not getting updated.

public void ExecuteMainFlow()

        {

            // 1. Get Project area details from work item number -- WG project area >> _Cr9g8F1AEeGx6_jqJZ63AA

            // Parameter: workItemNumber, Return value: projectArea

            Console.WriteLine("Getting Project Area Detail");

            Console.WriteLine(" PARAMETER: Work Item Number = {0}", MainForm.workItem);

            string jsonResponse = RunGet(@"https://adtclmamr00303.accenture.com/ccm/oslc/workitems/" +

                                            MainForm.workItem + @".json?oslc_cm.properties=rtc_cm:contextId");

            var dict = JsonConvert.DeserializeObject<Dictionary<string, dynamic>>(jsonResponse);

            string projectArea = dict["rtc_cm:contextId"];

            Console.WriteLine(" RETURN: Project Area = {0}", projectArea);

            // 2. Upload attachment to project area using POST Method

            // Parameter: projectArea, Return value: attItemID (UUID of attachment)

            Console.WriteLine("Uploading attachment to Project Area");

            Console.WriteLine(" PARAMETER: Project Area = {0}", projectArea);

            // string attItemId = RunPost(MainForm.urlPost, MainForm.fileAtt);

            // ***existing attachment hardcoded for testing

            string attItemId = "_b_CQIKvyEeWaxfv-hWy7tA";

            Console.WriteLine(" RETURN: UUID of Attachment = {0}", attItemId);

            // 3.  Add the link to the attachment on the work item       

            Console.WriteLine("Adding attachment link to Work Item");

            // 3.1 Get JSON response from attachment link

            Console.WriteLine(" PARAMETER: UUID of attachment = {0}", attItemId);

            string getResp = RunGet(@"https://adtclmamr00303.accenture.com/ccm/resource/itemOid/com.ibm.team.workitem.Attachment/" +

                                        attItemId);

            // Console.WriteLine(@" RETURN: Attachment ID = {0}, 

                                // Attachment Description = {1}", attId,attDesc);

            // 3.2 Post attachment to Work Item URL

            // Console.WriteLine(@" PARAMETER: Attachment ID = {0}, 

                                // Attachment Description = {1},

                                // UUID of attachment = {2}", attId, attDesc, attItemId);

            // RunFinalPost(MainForm.urlFinalPost, attItemId);

URI: https://host/ccm/oslc/workitems/13615.json?oslc_cm.properties=rtc_cm:com.ibm.team.workitem.linktype.attachment.attachment
PAYLOAD: @"{""rdf:resource"": ""https://host/ccm/resource/itemOid/com.ibm.team.workitem.Attachment/_b_CQIKvyEeWaxfv-hWy7tA"",
             ""oslc_cm:label"": ""9999 : Test Title""
           }

It's the consensus that there is no published API for uploading attachments to RTC. What most people try to do (and succeed for some) is monitor the traffic in a browser when uploading an attachment, then replicate the same traffic in their own application (regardless the programming language of choice). This results in using the internal API, which may behave differently across versions.

The Java API that can be used is explained here:
https://rsjazz.wordpress.com/2012/08/01/uploading-attachments-to-work-items/
https://rsjazz.wordpress.com/2012/09/21/downloading-attachments-from-work-items/

It is the Plain Java API that is provided with RTC for download. I have used that for years now with no changes to the code at all.

This is not a REST based approach. If you want to use a HTTP client, you will have to follow Don's suggestion and basically reverse engineer the protocol.

Please create your own question, instead of answering a 8 year old question with your question. The service in your question is an EWM service and likely not available for TCR's.